. >> it was a week sadly defined by tragedy from the flooding in colorado to the shooting at the washington navy yard. here now is our week in review. >> it was three gunshots, pow, pow, pow. three seconds later it was pow, pow, pow, pow, pow. >> i heard gunshots. >> i heard two more gunshots and he went down in front of me. >> 12 killed, 13 if you include the alleged shooter, airplane alexis. despite out busts and mental health issues, the incident never tripped alarm bills.